Puppet-valve for heat-engines.



L. G. NILSON.

PUPPET VALVE POB HEAT ENGlNBB. unlonxol rluzn un. 1e. 1907.

958,759. Patented may 24, 1910.

@vif/nunca Jn vc ufo: Wauw, 24W/JM UNITED STATES PATENT OFFICE.

LAHS G. NXLSON. OF HOBOKEN. NEW JERSEY, ASSIGNOB 0F ONE-HALF T0 WILLIAH B. STRANG, 0F NEW YORK. N. Y.

PUPPET-VALVE FOR HEAT-ENGINES.

Speotcntton of Letten Patent.

Patented May 24, 1910.

Applieatton lcd lnroh 18, 190i'. Serial No. 382.858.

'1b ull irliom it may concern:

lie it known that l. Luis (l. Xinsox. a eitizen ol` the ['niteil States, residing at lloho.en. in the eonnty of lliidnon and I\'tate ol' New Jersey. have invented eertain new :ind metal lnilnovenients in liippet-Vzilven` l'or lleat-llngine. of whieh the following is :i l'iill. eli-ar. and exart speeilieation.

'l'lii` intention relates to puppet valves l'oi' internal eoinlnhtion engines. and has.

liai'teiilar rei'eienee to ini n'ovenients in the ineelinnieal ron trnetion w ieiehy the weight i redneed and the strength inereased, and

atthe .-aii|e linie the radiating sarfaee inerea-.ed so that the \al\'e \\ill lio kept eool and damage hy oiei'lieatiiig prevented.

B r rea on ot' the large iiinnlier ol' .-aidden lim-lt to wliieli gas engine valves iil'e stili 'ei-ted. tlie inetal iii time heroines elystallized and the l-teni hi'eak 'l'o avoid this it haheretofore heen eitoniary to make sach \'al\'e.- heavier than is desirahle for liest operation. This itieiease iii the weight has a farther disadvantage in addition fo inert-asing the .dim-lt -il' aeeiinialating heat and hci-oniiiig very hoi. o that in ome inslanees il has heen foaiid nere-.-ai'y to provide a,y

water eirenlation for liet-ping the valve eool .-o iito |i|e\'e|it em'lainilni in' pitting li reason of the exeeasire heat.

'l`he olijeet of tliiinvention is tl provide :i valve havinr ineremed strength in |iro|iortion to its weight and at lla minne tinie having inereaaed radiating Iairfare .so that it in prevented from lweoniing orerheated. this rondini-tion also lit-ing anewhat resilient. -o that the .shoelta diie to the sudden seating ol' the valve ai'e ensliioned hy the valve itrelf. 'l'o attain this' oliiei't. l have provided n Valve wherein lh" head i preferably eiirved oiilii-hed and the niider ide is irovided with ril aliirli perform the doiihe fiinetion of iiizilt'ing the \'al\'e strong. and at the saine time provide aeli larger radiating snrfaees an lo prevent overheating of the valve.

'lhe invention is shown in the aeeoinpanying drawing` wherein Figure t is an elevation partly in sei-tion, and l-`ig. .2 is an nader plan view.

l is the valve stein. :.8 the seat. and It tho eiiri'ed or ili-lieil top having the rilm' -l oi the nn.lei-iile thereof. 'lhi-m, nhs -l are preferably eniwd as howii in order lo provide an increased radiating saifaee. und also will be explained, to enable the valve l head to he resilient to a eei'tai|i.exteiit when iineqinilly heated. 'l`he head 3 is iiiade eonsiderahly thinner than is the ordinary priietit-e. and it is .-till'ened hy the ribs l. the lattei' extending between the `teni and the onthide riin whit-li forms the real. 'l'he rihs are also dispmed so a to hi'aee the hodv and teni to maintain alineiiieiit. It i-i well known that the side ot' the \al\'e opening into the eonihnstion ehanilier of the engine i- .snh'eet to the greate-l heat. and ii-i eon.-'e iliieiity not as .strong when hot as it is when eold. l.iit by rea.-on of the tliiiiness of the head. this heat exin \'ei aait-lily eondiiet throngli to the ribs 4 and he radiated from theta. 'l'lie lower edge of the rilni being eoolest will he -inoie rigid than the hotter portions of the \'al\'e inelnding the head, and when the valve seats. the lower edges of the rihs are iindei' tension \\hile the head itself will he Slihjeet to eoinpi'wsion. lly enri'iiir the rihs as shown herein the eh'istie or ensiioiiing elleet ii|ion the seat ol' the \al\"e is eonsiderahly inerea-ed Ho that there will he sueh a en.-li.ionin; r ellert :is to prerent ei'.\.-talli7.ation ol' the nietal when the ralre suddenly seats. Ui'diinirily it will he i nnderstmd that these valves are inwhanieally operated so im to he sealed hv .-|iringrt or other quick-acting de\'iee.-. and the iiiot ion is always very .suddenly arre-ted. tty lightening the va ve eontriietion and making it so thin as to he somewhat resilient the aetii'm of the valve ia iinln'owd ainl ital lile prol lon md, while,thc rihfiprovide the inereased rai iatiiig @airfare and hraee the relatively light head.

lt will he understood that the ribs ean of eonl, he lwtriiight and lweenre the saine re- :-'.nlt` hat it, is preferable to inerease the enshioiiing ell'eet by earring the riha ux shown herein.

llin'ing thus described iny invention, l declare that what I claim as new and desins to secure by Letters latant, is,--

l. A valve for an explosion engine eoin- )rising a stein. a relativel thin enrveilhead .liaving a -thickened oatsii e edge forming a seating surfnet, and elongated reailient rilm iiiterral with mid thin carved head and thielieiied llango extending het ween the llange and the Iatom.

.t. A valvc for an explosion engine eoia- |iriaiiig a stein. a relatively thin head having u thickened llange on'one Hide forming a seuting surfnee, und ribs integral with the Suid Hun e und head. Amid ribs being elon- 10 heud und unge on the sume side ns the fmwe. oid extending in other thun n rndml threetlon between the lnnge und the stem.

heut lmlioting resilient ribs integral withl gated nm extending between the stem und. flnnge nl other (hun u rndml dn'ectlon.

In testilnonv whereof I ntlx my signature'.

in presenee o two witnesses.

LA RS G. NILSON.

W it nesse s:

JULIAN S. foos'rl-m, Gao. A. Hon-Amm 

